File:Artist's concept of collision at HD 172555.jpg
Summary
This artist's concept shows a celestial body about the size of our moon slamming at great speed into a body the size of <a href="https://en.wikipedia.org/wiki/Mercury_(planet)" class="extiw" title="en:Mercury (planet)">Mercury</a>. NASA's Spitzer Space Telescope found evidence that a high-speed collision of this sort occurred a few thousand years ago around a young star, called <a href="https://en.wikipedia.org/wiki/HD_172555" class="extiw" title="en:HD 172555">HD 172555</a>, still in the early stages of planet formation. The star is about 100 <a href="https://en.wikipedia.org/wiki/light-years" class="extiw" title="en:light-years">light-years</a> from <a href="https://en.wikipedia.org/wiki/Earth" class="extiw" title="en:Earth">Earth</a>.
Licensing
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 14:17, 5 January 2017 | | 3,000 × 2,400 (357 KB) | 127.0.0.1 (talk) | This artist's concept shows a celestial body about the size of our moon slamming at great speed into a body the size of <a href="https://en.wikipedia.org/wiki/Mercury_(planet)" class="extiw" title="en:Mercury (planet)">Mercury</a>. NASA's Spitzer Space Telescope found evidence that a high-speed collision of this sort occurred a few thousand years ago around a young star, called <a href="https://en.wikipedia.org/wiki/HD_172555" class="extiw" title="en:HD 172555">HD 172555</a>, still in the early stages of planet formation. The star is about 100 <a href="https://en.wikipedia.org/wiki/light-years" class="extiw" title="en:light-years">light-years</a> from <a href="https://en.wikipedia.org/wiki/Earth" class="extiw" title="en:Earth">Earth</a>. |
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